Grundfos CRNE Vertical In-Line Multistage Pumps

Grundfos CRNE Vertical In-Line Multistage Pumps for Variable-Speed Water Treatment, Pressure Boosting, Industrial Process, and Corrosive Liquid Applications

Grundfos CRNE Vertical In-Line Multistage Pumps combine the corrosion-resistant construction of the Grundfos CRN range with integrated variable-speed motor technology. Designed for applications that require high pressure, stainless steel wetted components, and precise control, CRNE pumps are well suited for water treatment, industrial process water, pressure boosting, filtration, high-purity water, and other demanding systems with changing flow or pressure requirements.

The CRNE uses a vertical multistage centrifugal design with in-line suction and discharge connections. Multiple impeller stages provide high head capability while the compact vertical layout helps conserve mechanical room and equipment skid space. Stainless steel wetted construction provides enhanced corrosion resistance for treated water, demineralized water, industrial cleaning fluids, process water, and other compatible liquids where standard material construction may not be suitable.

A key advantage of the CRNE is its electronically controlled motor with integrated variable-speed functionality. When paired with appropriate sensors and settings, the pump can automatically adjust its operating speed according to actual system demand. This makes CRNE pumps useful for constant pressure, constant flow, temperature, differential pressure, level, and other controlled pumping strategies.

By combining stainless steel multistage hydraulics, motor, drive, and intelligent control in one coordinated pump solution, Grundfos CRNE pumps can help improve energy efficiency, maintain more stable operating conditions, and reduce reliance on throttling valves or oversized fixed-speed pumping. The wide range of available sizes, stages, seals, and control configurations allows the CRNE platform to support both commercial and demanding industrial applications.

Features

• Vertical in-line multistage centrifugal pump design
• Stainless steel wetted construction for enhanced corrosion resistance
• Integrated electronically controlled motor
• Variable-speed operation for demand-based pumping
• Combines CRN stainless steel hydraulics with Grundfos E-pump technology
• Multiple impeller stages provide high-head capability
• Compact vertical layout helps reduce floor space
• In-line suction and discharge connections help simplify piping
• Supports constant pressure control
• Supports constant flow control
• Supports differential pressure control
• Supports temperature and differential temperature control
• Supports level control with appropriate sensors and configuration
• Automatically adjusts pump output to changing system demand when properly configured
• Helps reduce unnecessary energy consumption in variable-load systems
• Can reduce reliance on throttling valves for system control
• Suitable for high-purity, treated water, and corrosion-sensitive applications
• Multiple pump sizes, stages, mechanical seals, and motor configurations available
• Designed for commercial, industrial, municipal, and process applications
• Useful for upgrading fixed-speed stainless steel pumping systems to variable-speed operation

Applications

• Water treatment systems
• Reverse osmosis support
• Demineralized water systems
• High-purity water applications
• Variable-speed pressure boosting
• Industrial process water
• Filtration systems
• Boiler feed applications
• Cooling water systems
• Industrial cooling
• Wash and cleaning systems
• Food and beverage utility systems
• Chemical process support
• Commercial water supply
• Industrial water distribution
• Process skids and packaged systems
• Corrosion-sensitive pumping applications
• Constant pressure systems
• Demand-based high-pressure pumping